A bicycle-powered bus

By Sean O'Neill
October 3, 2012

The VeloDisco is a bicycle powered art vehicle built for Burning Man 2007. The double-decker vehicle is so lightweight that five bicyclists can use pedal power to move up to 30 people at a time.

Here's a video of it in motion:

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Rent a hybrid in Paris for nearly nothing?

The mayor of Paris is proposing that the city offer about 2,000 electric vehicles for the public and tourists to use. The cost in euro would be about $5 an hour, depending on mileage. Details are expected next month, according to the London Times. You'll likely be able to use an electric vehicle, dubbed by locals Voiturelib' ("free car"), that can go a maximum of about 60 miles an hour, according to the car blog Jalopnik. Under the plan, public cars will be available to the residents and tourists without needing to book ahead. If you subscribed to the proposed service, you would be able to pick a car up from a station and leave it anywhere in the city, with fees being deducted from your credit card. Paris already has a car-sharing scheme with regular gas-guzzling cars. You subscribe to the services offered by three companies and then whenever you need a car, you pick it up in a parking space near you and pay roughly $4 to $13 an hour, depending on your plan, or a fee by the kilometer driven. When done, you return the car where you picked it up. Gas is included in the price. Tourists can use the services, but be aware that the participating company websites are in French: Caisee Commune, Mobizen, and Okigo. The program is similar to the free-bicycle program in Paris that we told you about last summer. That program has been wildly successful. Called Vélib', it has spawned its own language: There is the véliber (to ride a free bike), and the derivatives vélibataire (single male cyclist), vélimace (cyclist moving at a snail's pace), vélibation (a drunk night on a free bike), and Vélibabouchka (a bike-riding grandma), according to the Dictionnaire du Vélib' by Anne Abeillé. The program has also spawned its own traditions. "A seat turned backwards is an indication that that particular bicycle has a flat tire, a broken chain or some other fault, and other users should avoid it," according to blogger Khoi Vinh. MORE Info on free bicycle programs in Europe by Paul Brady at the blog Jaunted. ELSEWHERE ON OUR SITE Here's Budget Travel's round-up of free bike programs in Europe. EARLIER ON THE BLOG Air France starts a carbon-offset program.

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A leap forward in noise-canceling headphones?

Sony announced today that it has taken the technology behind noise-canceling headphones a step further with its (eloquently named) MDR-NC500D. Sony claims in its press release that the headphones will block 99 percent of noise in the range of a jet engine. That's good news: Some medical studies say that jet-engine noise helps cause jet lag because the brain gets worn out having to deal with the buzz for a prolonged period of time. Sony's headphones aren't a budget-travel option yet, given their expected $400 price tag when they go on sale in February. But hopefully the technology will filter down to lower-priced models in the years ahead. Gizmodo, a technology blog that was present at Sony's announcement in Las Vegas, asked Sony what exactly made these a world's first digital noise canceling headphones. Sony says that while other headphones use an analog mechanism for equaling out the sound, their headphones "do an analog to digital conversion using a digital signal processor with three filters. That should, in theory, result in far better sound since the sound gets cleaned up with digital equalizer before you hear it." If you can explain what that means, feel free to post a comment. EARLIER ON THE BLOG Before you buy a digital camera, visit this website.